The majority of digestion takes place in the

What two fields of study provide the core information that is used to classify organisms?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.